CA2542050A1 - Method and apparatus for data rate control in soft handoff and during cell-switching - Google Patents

Method and apparatus for data rate control in soft handoff and during cell-switching Download PDF

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Publication number
CA2542050A1
CA2542050A1 CA002542050A CA2542050A CA2542050A1 CA 2542050 A1 CA2542050 A1 CA 2542050A1 CA 002542050 A CA002542050 A CA 002542050A CA 2542050 A CA2542050 A CA 2542050A CA 2542050 A1 CA2542050 A1 CA 2542050A1
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CA
Canada
Prior art keywords
data rate
rate
rate control
command
base stations
Prior art date
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Granted
Application number
CA002542050A
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French (fr)
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CA2542050C (en
Inventor
Avinash Jain
David Puig Oses
Yongbin Wei
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Qualcomm Inc
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Individual
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Publication date
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Publication of CA2542050A1 publication Critical patent/CA2542050A1/en
Application granted granted Critical
Publication of CA2542050C publication Critical patent/CA2542050C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/22—Negotiating communication rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

A method and apparatus for controlling a data rate of a transmission in a wireless communication system during handoff. Controlling the data rate includes receiving transmissions from a plurality of base stations, wherein at least one of the received transmissions includes an acknowledgement message.
Then determining a rate control command included within transmissions of the base station that includes the acknowledgement message and using the command to control the data rate. Controlling the data rate also includes receiving transmissions from a plurality of base stations. Then determining a plurality of rate control commands included within the received transmissions from the plurality of base stations. The rate control commands are then combined and used to control the data rate.

Claims (35)

1. A method of controlling a data rate of a transmission in a wireless communication system during handoff, the method comprising:

receiving transmissions from a plurality of base stations, wherein at least one of the received transmissions includes an acknowledgement message;
determining a rate control command in accordance with the received transmissions that includes the acknowledgement message; and adjusting the data rate of the transmission during handoff in accordance with the rate control command.
2. A method as defined in Claim 1, wherein the receiving, determining and adjusting are performed in a mobile station.
3. A method as defined in Claim 1, wherein the receiving, determining and adjusting are performed in a base station.
4. A method as defined in Claim 1, wherein the acknowledgement message is received from only one of the plurality of base stations.
5. A method as defined in Claim 1, wherein more than one of the plurality of base stations transmit a received acknowledgement message and the data rate during handoff is adjusted in accordance with the rate control associated with the last received transmission that included the acknowledgement message.
6. A method as defined in Claim 1, wherein one of the plurality of base stations other than the base station from which the acknowledgement message was received communicates a desired data rate command to the base station from which the acknowledgement message was received.
7. A method as defined in Claim 6, wherein the base station from which the acknowledgement message was received uses the desired data rate command in determining the rate control command.
8. A method of controlling a data rate of a transmission in a wireless communication system during handoff, the method comprising receiving transmissions from a plurality of base stations;

determining a rate control command in accordance with the received transmissions from the plurality of base stations; and adjusting the data rate of a transmission in accordance with the determined rate control command.
9. A method as defined in Claim 8, wherein determining the rate control command includes applying weighting factors to rate control commands derived from the received transmissions.
10. A method as defined in Claim 9, wherein one of the plurality of base stations is designated as a primary base station.
11. A method as defined in Claim 10, wherein the rate control command derived from the primary base station is assigned a larger weighting factor than the rate control command derived from non-primary base stations.
12. A method as defined in Claim 8, wherein a primary base station sends a transmission specifying a rate control command based on a desired quality of service.
13. A method as defined in Claim 8, wherein determining the rate control command further comprises combining a plurality of rate commands.
14. A method as defined in Claim 13, wherein combining the plurality of rate commands transmission is in an asymmetric operation.
15. A method as defined in Claim 14, wherein a primary base station controls data rate ramp-up.
16. A method as defined in Claim 14, wherein non-primary base stations provide data rate control of system congestion.
17. A method as defined in Claim 13, wherein combining the plurality of rate commands further comprises decreasing the data rate if at least one data rate command is for a decreased rate.
18. A method as defined in Claim 13, wherein combining the plurality of rate commands further comprises maintaining the data rate if none of the data rate commands is for a decreased rate and at least one data rate command is a command to hold the data rate.
19. A method as defined in Claim 13, wherein combining the plurality of rate commands further comprises maintaining the data rate if none of the data rate commands is for a decreased rate, an increase rate or a command to hold the data rate.
20. A method as defined in Claim 13, wherein combining the plurality of rate commands further comprises increasing the data rate if none of the data rate commands is for a decreased rate or a command to hold the data rate and at least one data rate command is for an increased data rate.
21. An apparatus for controlling a data rate of a transmission in a wireless communication system during handoff, the apparatus comprising:
a receiver configured to receive transmissions from a plurality of base stations, wherein at least one of the received transmissions includes an acknowledgement message; and a processor configured to determine a rate control command in accordance with the received transmissions that includes the acknowledgement message, and to adjust the data rate of the transmission during handoff in accordance with the rate control command.
22. An apparatus as defined in Claim 21, wherein the receiver and processor are included in a mobile station.
23. An apparatus for controlling a data rate of a transmission in a wireless communication system during handoff, the apparatus comprising a receiver configured to receive transmissions from a plurality of base stations;

a processor configured to determine a rate control command in accordance with the received transmissions from the plurality of base stations and to adjust the data rate of a transmission in accordance with the determined rate control commands.
24. An apparatus as defined in Claim 23, wherein determining the rate control commands further comprises combining rate control commands derived from the transmissions received from the plurality of base stations.
25. An apparatus as defined in Claim 24, wherein combining the rate control commands includes applying weighting factors to rate control commands.
26. An apparatus as defined in Claim 24, wherein combining the rate control commands is in an asymmetric operation.
27. An apparatus as defined in Claim 26, wherein a primary base station controls the data rate ramp-up.
28. An apparatus as defined in Claim 26, wherein non-primary base stations provide data rate control of system congestion.
29. An apparatus as defined in Claim 24, wherein combining the rate control commands further comprises decreasing the data rate if at least one data rate command is for a decreased rate.
30. An apparatus as defined in Claim 24, wherein combining the rate control commands further comprises maintaining the data rate if none of the data rate commands is for a decreased rate and at least one data rate command is a command to hold the data rate.
31. An apparatus as defined in Claim 24, wherein combining the rate control commands further comprises maintaining the data rate if none of the data rate commands is for a decreased rate, an increase rate or a command to hold the data rate.
32. An apparatus as defined in Claim 24, wherein combining the rate control commands further comprises increasing the data rate if none of the data rate commands is for a decreased rate or a command to hold the data rate and at least one data rate command is for an increased data rate.
33. A computer readable media embodying a method of controlling a data rate of a transmission in a wireless communication system during handoff, the method comprising:
receiving transmissions from a plurality of base stations, wherein at least one of the received transmissions includes an acknowledgement message;
determining a rate control command in accordance with the received transmissions that includes the acknowledgement message; and adjusting the data rate of the transmission during handoff in accordance with the rate control command.
34. A computer readable media embodying a method of controlling a data rate of a transmission in a wireless communication system during handoff, the method comprising receiving transmissions from a plurality of base stations;
determining a rate control command in accordance with the received transmissions from the plurality of base stations; and adjusting the data rate of a transmission in accordance with the determined rate control commands.
35. A method of controlling a data rate of a transmission in a wireless communication system during handoff, the method comprising:

means for receiving transmissions from a plurality of base stations, wherein at least one of the received transmissions includes an acknowledgement message;

means for determining a rate control command in accordance with the received transmissions that includes the acknowledgement message; and means for adjusting the data rate of the transmission during handoff in accordance with the rate control command.
CA2542050A 2003-10-14 2004-10-13 Method and apparatus for data rate control in soft handoff and during cell-switching Expired - Fee Related CA2542050C (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US51125403P 2003-10-14 2003-10-14
US60/511,254 2003-10-14
US52913503P 2003-12-11 2003-12-11
US60/529,135 2003-12-11
US10/914,593 US9629030B2 (en) 2003-10-14 2004-08-09 Data rate control in soft handoff and during cell-switching
US10/914,593 2004-08-09
PCT/US2004/033787 WO2005039232A1 (en) 2003-10-14 2004-10-13 Method and apparatus for data rate control in soft handoff and during cell-switching

Publications (2)

Publication Number Publication Date
CA2542050A1 true CA2542050A1 (en) 2005-04-28
CA2542050C CA2542050C (en) 2011-07-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2542050A Expired - Fee Related CA2542050C (en) 2003-10-14 2004-10-13 Method and apparatus for data rate control in soft handoff and during cell-switching

Country Status (14)

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US (2) US9629030B2 (en)
EP (1) EP1678982B1 (en)
JP (1) JP4456120B2 (en)
KR (2) KR100946113B1 (en)
AT (1) ATE505046T1 (en)
BR (1) BRPI0415372A (en)
CA (1) CA2542050C (en)
DE (1) DE602004032161D1 (en)
HK (1) HK1094643A1 (en)
IL (1) IL174618A (en)
MX (1) MXPA06004145A (en)
TW (1) TWI389496B (en)
UA (1) UA83689C2 (en)
WO (1) WO2005039232A1 (en)

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JP4456120B2 (en) 2010-04-28
CA2542050C (en) 2011-07-12
KR100973925B1 (en) 2010-08-03
MXPA06004145A (en) 2006-06-27
US20170215108A1 (en) 2017-07-27
KR100946113B1 (en) 2010-03-10
EP1678982A1 (en) 2006-07-12
UA83689C2 (en) 2008-08-11
HK1094643A1 (en) 2007-04-04
US9629030B2 (en) 2017-04-18
KR20090116814A (en) 2009-11-11
AU2004306883A1 (en) 2005-04-28
JP2007508790A (en) 2007-04-05
DE602004032161D1 (en) 2011-05-19
WO2005039232A1 (en) 2005-04-28
TWI389496B (en) 2013-03-11
ATE505046T1 (en) 2011-04-15
TW200605687A (en) 2006-02-01
EP1678982B1 (en) 2011-04-06
KR20060086426A (en) 2006-07-31
IL174618A (en) 2011-06-30
US20050141454A1 (en) 2005-06-30
AU2004306883B2 (en) 2008-09-04
US9973974B2 (en) 2018-05-15
IL174618A0 (en) 2006-08-20
BRPI0415372A (en) 2006-12-12

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